Trolley-ear.



No. 892,371. I PATENTEDJUNE 30, 1908. G. W. ELIOT.

TROLLEY EAR.

APPLICATION FILED APR. 9.1906.

( lm-Mao j-vwcwtoz 35 momwws d2 CHARLES W. ELIOT, OF

TAMPA, FLORIDA, ASSIGNOR OF ONE-HALF TO WILLIAM H.

CALDWELL, OF TAMPA, FLORIDA.

TROLLEY-EAR.

Specification of Letters Patent.

Application filed April 9, 1906.

Patented June 30, 1908.

Serial No. 310,584.

To all whom it may concern:

Be it known that I, CHARLES IV. ELIOT, a citizen of the United States, and residing at Tampa, in the county of Hillsboro, State of Florida, have made a certain new and useful Invention in Trolley-Ears, of which the following is a specification.

This invention relates to trolley ears.

The object of the invention is to simplify and improve the construction and manner of mounting trolley ears and to render the same more efficient and reliable in use.

A further object is to provide means which are simple and efficient whereby the trolley ear is prevented from becoming detached from its fastenings or support by reason of vibrations of the trolley wire, due to the operation of the trolleys therealong or from other cause.

Other objects of my invention will appear more fully hereinafter.

The invention consists substantially in the construction, combination, location and arrangement, all as will be more fully hereinafter set forth, as shown in the accompanying drawing and finally pointed out in the appended claims.

Referring to the accompanying drawing, and to the various views and reference signs appearing thereon, Figure 1, is a view inside elevation of a trolley ear, its hanger or sup port and hood, and showing a construction and arrangement embodying the principles of my invention. Fig. 2, is a view in central longitudinal section of the same. Fig. 3, is a broken detail view in section on the line 3, 3, Fig. 2, looking in the direction of the arrows.

The same part is designated by the same reference sign wherever it occurs throughout the several views.

Reference sign A, designates a trolley car; B, the hanger therefor; C, the hood; and D, the hood shank by which these several parts are held together in assembled relation. These parts may be of the usual or any well known construction or type.

In practice it is ordinarily the custom to secure the hood shank to the hood and to pass the same through the central hub of the hanger and an insulating block E, and to attach the trolley ear to such shank, usually by providing the ear with a threaded socket into which the shank D, is screwed, said shank being exteriorly threaded for such purpose.

These details, however, are all well known and in common use and are not of my inven tion, and hence may be altered and varied at pleasure without affecting the principles or spirit and scope of my invention.

In the use of trolley ears the vibrations of the trolley wire or conductor due to the passage therealong of the trolley wheel, or other cause, frequently cause the ear to work loose from its supporting hood and hanger, or to become detached fronrthe shank by which the parts are held together. It is among the special objects of my invention to avoid this objection, and in carrying out my invention I propose to secure the trolleyear to the shank in such manner that these parts, when in use, cannot work loose or become accidentally detached, while at the same time permitting them to be readily detached whenever necessary for renewal or repair. This idea may be embodied in a wide variety of structures without dep arture from the spirit and scope of my invention. In the particular form shown, to which, however, my inven tion is not to be limited or restricted, I drill or otherwise form a hole transversely through the hood shank, and in the end surface of the boss F, of the ear, I cut or form a diametrical groove or channel G, which may be brought into alinement with the hole through the hood shank D, and I place an ordinary spring or other form of cotter or pin, I-I, through such registering groove and hole, as clearly shown in the drawings, thereby securing the ear to the hood shank in such manner that these parts cannot Work loose or become accidentally detached, and yet so that they may be designedly and readily detached whenever required or desired. The particular location of the holes or openings is not important so long as they may be brought into register to receive the locking cotter or pin II. In practice, and as shown, I propose to employ only one hole in the hood shank, but a plurality of grooves or channels G, in the boss F, of the ear, thereby enabling me to secure a desirable range of angular adjustment of the ear relative to the shank. I do not desire, however, to be limited or restricted in these respects, as many varia tions therefrom and changes therein may readily suggest themselves to persons skilled in the art without departure from the spirit and scope of my invention.

From the foregoing description it will be seen that I provide an exceedingly simple and efiective means for securing the trolley ear against accidental detachment or displacement, while at the same time permitting of a ready detachment thereof whenever required or desired, and also permitting a desirable range of angular adjustment thereof.

Having now set forth the object and nature of my invention and a construction embodying the principles thereof, what I claim as new'and useful and of my own invention, and desire to secure by Letters Patent is The combination with a trolley ear having an integral boss formed with an interiorly threaded socket, said boss having a plurality of grooves or channels formed diametrically in the end surface thereof, and a hanger having an exteriorly threaded shank adapted to be screwed into said threaded socket, said shank having a transverse diametrically ar ranged opening therethrough adapted to be brought into register with any one of said grooves or channels, of a pin arranged to be received in said registering opening and groove or channel to hold the shank and boss against relative rotative movement.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this fourth day of April A. D. 1906.

CHARLES W. ELIOT.

Witnesses:

WILL J. WVYLA GEO. S. BOURNE. 

